"So the middle classes shouldn't be able to buy where they choose,send their dc to the school of their choice or push them either by tutoring them themselves or by outsourcing. However the rich can continue to send their kids to the best the private sector has to offer,with all the advantages and contacts that brings."
You've got a weird sort of persecution complex. I've not made any sort of case for 'banning' tutoring or stopping people buying houses where ever they wish. Nobody has. Nobody is suggesting banning anything or stopping anything.
I'm just making a case for structural changes in the way selection is done at the end of primary in order to improve the chances of those children who are currently at the bottom of the pile, and who I think are seriously disadvantaged by the way the system works. Incidentally, I don't include my own children in this group.
"And actually being good at music,dance or sport can be hugely beneficial."
"Why is that ok but parents putting time and money into their kids brains not ok?"
Who has said it's 'ok'? It's NOT ok! I think state schools should offer better provision for music, sport and art. I think it's appalling and deeply unfair that the only children who have a chance to properly learn to play a musical instrument are those whose parents can afford to shell out £35 an hour for individual tuition.